New Method for Reconstructing Effective Top Quark Spin

Abstract

We propose a new method for reconstructing an effective spin direction of a semi-leptonically decayed top quark. The method is simple: for instance, it does not require the spin information of the antitop quark in a ttbar event. The reconstructed effective spin is expected to be useful in hadron collider experiments. We demonstrate its usefulness in an analysis of the top decay vertex.

10 pages, 6 figures; one reference added; version to appear in Phys.Lett.B

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Cited by in corpus (5)

• Lepton distribution as a probe of new physics in production and decay of the t quark and its polarization
• Probing R-parity Violating Interactions from Top Quark Polarization at LHC
• Precise probing and discrimination of third-generation scalar leptoquarks
• Search for Anomalous Couplings in Top Decay at Hadron Colliders
• Generalized top-spin analysis and new physics in $e^{+}{e}^{-}$ collisions with beam polarization